Benton County, IA

327 public highway bridges

Benton County Bridge Snapshot

Benton County, Iowa contains 327 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.1% are rated “Good,” 42.2% “Fair,” 23.5% “Poor,” and 23.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

327
Total Bridges
32.1%
Good
23.5%
Poor
23.5%
Structurally Deficient

Condition Distribution

Good
32.1% (105)
Fair
42.2% (138)
Poor
23.5% (77)
SD
23.5% (77)

All Bridges (327)

FM

Good

Over: ROCK CREEK

085120602, Benton, IA

Built 2006 Load: 35.3 t ADT: 1,340

FM

Good

Over: BLUE CREEK

086092602, Benton, IA

Built 2016 Load: 35.3 t ADT: 69

FM

Good

Over: ROCK CK

085120502, Benton, IA

Built 1989 Load: 36.3 t ADT: 20

LOCAL

Good

Over: HINKLE CREEK

085112807, Benton, IA

Built 1989 Load: 36.4 t ADT: 50

LOCAL

Good

Over: BR BLUE CREEK

086092201, Benton, IA

Built 1988 Load: 37.1 t ADT: 44

LOCAL

Good

Over: SPRING CKEEK

086111602, Benton, IA

Built 1991 Load: 37.1 t ADT: 20

E24 61ST ST LANE

Good

Over: STREAM

085093303, Benton, IA

Built 2020 Load: 37.6 t ADT: 1,532

SR V 40

Good

Over: PRAIRIE CREEK

083121002, Benton, IA

Built 2011 Load: 38.9 t ADT: 25

11TH AVE

Good

Over: TRIBUTARY TO STEIN CREEK

084122902, Benton, IA

Built 2020 Load: 38.9 t ADT: 15

FM

Good

Over: PRAIRIE CREEK

083110601, Benton, IA

Built 2008 Load: 39.5 t ADT: 25

LOCAL

Good

Over: ROCK CREEK

086110801, Benton, IA

Built 1992 Load: 39.6 t ADT: 20

FM

Good

Over: ROCK CREEK

086110802, Benton, IA

Built 1988 Load: 39.6 t ADT: 70

LOCAL

Good

Over: PRATT CK

086112602, Benton, IA

Built 1988 Load: 39.6 t ADT: 20

13TH AVE

Good

Over: BRANCH OF STEIN CREEK

084122702, Benton, IA

Built 1998 Load: 39.9 t ADT: 15

30 AVE DR

Good

Over: BRANCH OPOSSUM CREEK

084090400, Benton, IA

Built 2021 Load: 40.2 t ADT: 168

50TH ST

Good

Over: SPRING CREEK

086110303, Benton, IA

Built 2012 Load: 40.2 t ADT: 80

FM 1849

Good

Over: STEIN CREEK

084122202, Benton, IA

Built 1989 Load: 40.7 t ADT: 10

LOCAL

Good

Over: PRATT CK

085122301, Benton, IA

Built 2007 Load: 40.8 t ADT: 29

LOCAL

Good

Over: BLUE CREEK

086091305, Benton, IA

Built 2007 Load: 40.8 t ADT: 33

US 30 EB

Good

Over: UNNAMED CREEK

1.2 MI. W. OF CO. RD. V66, Benton, IA

Built 2022 Load: 40.8 t ADT: 3,800

V66 22ND AVE

Good

Over: PRATT CREEK

086113600, Benton, IA

Built 2021 Load: 41.1 t ADT: 206

LOCAL

Good

Over: MUD CREEK

084100701, Benton, IA

Built 2010 Load: 41.8 t ADT: 20

25TH AVE

Good

Over: MUD CREEK

085102818, Benton, IA

Built 2013 Load: 41.8 t ADT: 78

FM

Good

Over: PRAIRIE CREEK

082102608, Benton, IA

Built 2002 Load: 44.7 t ADT: 206

E22 61ST ST

Good

Over: STEIN CREEK

085123101, Benton, IA

Built 2015 Load: 44.7 t ADT: 340

FM (LWC)

Good

Over: SMALL STREAM

082122905, Benton, IA

Built 1993 Load: 45.4 t ADT: 410

LOCAL

Good

Over: BR PRAIRIE CREEK

083122301, Benton, IA

Built 1994 Load: 45.7 t ADT: 140

LOCAL

Good

Over: BR STEIN CK

084122802, Benton, IA

Built 1999 Load: 45.7 t ADT: 26

LOCAL

Good

Over: BR HINKLE CK

085112201, Benton, IA

Built 2001 Load: 45.7 t ADT: 40

FM

Good

Over: WILDCAT CREEK

083100601, Benton, IA

Built 1998 Load: 46.3 t ADT: 15

E24 33RD AVE DR

Good

Over: SPRING CREEK

085092504, Benton, IA

Built 2015 Load: 47.0 t ADT: 334

LOCAL

Good

Over: WILDCAT CK

084091702, Benton, IA

Built 2004 Load: 47.2 t ADT: 29

FM

Good

Over: ROCK CREEK

086123402, Benton, IA

Built 2005 Load: 48.2 t ADT: 10

LOCAL

Good

Over: STREAM

084091901, Benton, IA

Built 2004 Load: 49.2 t ADT: 20

LOCAL

Good

Over: PRATT CREEK

085110701, Benton, IA

Built 1997 Load: 50.0 t ADT: 26

65TH ST

Good

Over: MUD CREEK

084112201, Benton, IA

Built 2000 Load: 51.1 t ADT: 45

I 380

Good

Over: DRAINAGE DITCH

0.5 mi. S of Jct. IA 150, Benton, IA

Built 1982 Load: 51.2 t ADT: 21,300

LOCAL

Good

Over: SMALL CREEK

084120801, Benton, IA

Built 1998 Load: 52.8 t ADT: 34

LOCAL

Good

Over: DRY CK

083093001, Benton, IA

Built 2001 Load: 53.5 t ADT: 5

E22 61ST ST

Good

Over: PRATT CREEK

085123501, Benton, IA

Built 2015 Load: 55.7 t ADT: 334

LOCAL

Good

Over: BR MUD CREEK

084111801, Benton, IA

Built 2001 Load: 57.9 t ADT: 15

LOCAL

Good

Over: SPRING CREEK

086111501, Benton, IA

Built 1996 Load: 58.4 t ADT: 26

72 ST

Good

Over: BR. OF PRAIRE CREEK

083112501, Benton, IA

Built 2000 Load: 67.4 t ADT: 15

LOCAL

Good

Over: MUD CREEK

084100602, Benton, IA

Built 1998 Load: 69.4 t ADT: 40

29 AVE

Good

Over: BR LITTLE BEAR CREEK

083090504, Benton, IA

Built 2000 Load: 71.3 t ADT: 11

LOCAL (LWC)

Good

Over: BR PRAIRIE CREEK

082091902, Benton, IA

Built 1996 Load: 89.9 t ADT: 20

69TH ST

Good

Over: SMALL STREAM

083120901, Benton, IA

Built 2000 Load: 99.9 t ADT: 15

FM

Good

Over: BR WILDCAT CK

084103101, Benton, IA

Built 2001 Load: 99.9 t ADT: 15

LOCAL

Good

Over: BR WILD CAT CREEK

084102801, Benton, IA

Built 1997 Load: 99.9 t ADT: 44

LOCAL

Good

Over: BR. OF PRATT CREEK

086112601, Benton, IA

Built 1999 Load: 99.9 t ADT: 11

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial